摘要:
The present invention provides an insecticidal composition comprising of at least one insecticidal compound with effective knock-down action selected from among group (A) comprising of imidacloprid, acetamiprid, thiamethoxam, thiacloprid, nitenpyram, dinotefuran, clothianidin, abamectin, emamectin, emamectin benzoate and fipronil, and at least one insecticidal compound with effective long-term action selected from among group (B) of insect growth regulators comprising of benzoylphenyl urea (BPU) compounds selected from among novaluron, lufenuron, hexaflumuron, triflumuron, diflubenzuron, chlorfluazuron, flufenoxuron, noviflumuron and teflubenzuron. Optionally, said insecticidal composition may further contain excipients and/or additives and/or surface active agents. Further provided is a method for insect control, comprising of applying at least one insecticidal compound with effective knock-down action selected from among group (A) comprising of imidacloprid, acetamiprid, thiamethoxam, thiacloprid, nitenpyram, dinotefuran, clothianidin, abamectin, emamectin, emamectin benzoate and fipronil, and at least one insecticidal compound with effective long-term action selected from among group (B) of insect growth regulators (IGR) comprising of benzoylphenyl urea (BPU) compounds; to a crop, agricultural product, plant matter, animal or locale.
摘要:
The present invention provides a process for reacting between a phenol derivative and an aromatic substrate under phenolate forming conditions comprising the following steps: (a) reacting a phenol derivative with a base in a polar organic solvent to obtain a phenolate salt, wherein water is removed from the reaction mixture during the reaction. (b) adding the aromatic substrate to the reaction mixture obtained in step (a), (c) heating the reaction mixture of step (b) to a temperature in the range of 80° to 1300C, preferebly, 90- 1000C for 2 to 7 hours to obtain a phenoxy substituted aromatic substrate, (d) removing the solvent from the mixture of step (c) and further isolating and purifying the phenoxy substituted aromatic substrate. Optionally, the removal of water during step (a) is in conjunction with partial removal of the organic solvent.
摘要:
The present invention provides a redispersible powder and aqueous dispersions of nanoparticles of water insoluble organic pesticides. The invention further provides methods for preparing the redispersible powder and the aqueous dispersion, wherein the methods include preparation of an oil-in-water nanoemulsion or microemulsion and solvent removal. The present invention also provides pesticidal compositions of the redispersible powder or aqueous dispersions, and their agricultural use in combating pests.
摘要:
The present invention provides a process for the preparation of l-halomethyl-2-phenyl-l-phenyl oxirane, wherein the phenyl substituents may be mono-, di- or poly- halo substituted, wherein 3 -halo- 2 -phenyl- 1-phenyl propene is reacted with an anhydride and hydrogen peroxide in a solvent selected from among alkyl esters, followed by subsequent extraction and separation of the organic phase and isolation of the oxirane . The isolation and purification of the oxirane is carried out subsequent to the reaction and includes extraction and crystallization in single, multiple or repeated stages .
摘要:
A sheet for pest control, wherein said sheet is of polymeric material and comprises at least two layers; a top layer and a bottom layer, wherein the bottom layer contains a herbicide and one or more pesticides selected from among fungicides and insecticides, and the top layer optionally containing an insecticide and/or fungicide. Other aspects of the invention include a polymeric composition used in the preparation of the sheets and a method for pest control in agriculture, horticulture and gardens.
摘要:
N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine is prepared by reacting 2-phenoxy ethanol with thionyl chloride in the presence of a catalytic amount of tetra-alkyl ammonium halide optionally in the presence of a solvent to form 2-phenoxy ethyl chloride; reacting the 2-phenoxy ethyl chloride with n-propylamine at a temp-erature of from 50°C to 150°C optionally in the presence of a solvent to form N-n-propyl-N-2-phenoxy-ethyl amine; selectively chlorinating N-n-propyl-N-2-phenoxyethyl amine with chlorine in the presence of a solvent; and recovering the N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine formed.
摘要:
N-n-propyl-N-2-(2,4,6-trichlorophenoxy)-ethylamine is prepared by selectively chlorinating 2-phenoxy ethanol by reacting it with chlorine either in the presence of hydrogen chloride at a temperature of from -10°C to 50°C or in the presence of urea at a temperature of from 20°C to 55°C in a water/carbon tetrachloride solvent mixture to form 2-(2,4,6-trichlorophenoxy)ethanol; reacting the 2-(2,4,6-trichlorophenoxy)ethanol with thionyl chloride in the presence of a catalytic amount of tetraalkyl ammonium chloride, optionally in the presence of a solvent to form 2-(2,4,6-trichlorophenoxy,ethyl chloride; and reacting the 2-(2,4,6-trichlorophenoxy) ethyl chloride with n-propylamine at a temperature of from 20°C to 150°C, optionally in the presence of water to form N-n-propyl-N-2-(2,4,6-trichlorophenoxy) ethyl amine,
摘要:
Herbicidal compositions containing a compound of the formula: wherein R is hydrogen, a lower alkyl, lower alkoxy, amino, substituted amino, cycloalkyl, halogen, or nitro; Rʹ is selected from the group consisting of a haloalkylthio group containing l or 2 carbon atoms and at least two halogen substituents; linear or branched alkyl and alkenyl group having from 2 to l0 carbon atoms, optionally substituted by halogen, hydroxy, lower alkoxy or haloalkyl; and cycloalkyl of 5 to l0 carbon atoms, optionally substituted by halogen, hydroxy, lower alkoxy, or haloalkyl; provided that at least one of Rʹ is a haloalkylthio group as defined; n is zero or an integer from l to 4; and X is oxygen or sulfur
摘要:
Herbicidal compositions containing a compound of the formula: wherein R is hydrogen, a lower alkyl, lower alkoxy, amino, substituted amino, cycloalkyl, halogen, or nitro;
Rʹ is selected from the group consisting of a haloalkylthio group containing l or 2 carbon atoms and at least two halogen substituents; linear or branched alkyl and alkenyl group having from 2 to l0 carbon atoms, optionally substituted by halogen, hydroxy, lower alkoxy or haloalkyl; and cycloalkyl of 5 to l0 carbon atoms, optionally substituted by halogen, hydroxy, lower alkoxy, or haloalkyl; provided that at least one of Rʹ is a haloalkylthio group as defined;